Patent GB-362974-A (GB)
Title: Improvements in or relating to winding machines for yarn, thread and the like
IPC: B65H63/036
Filed: 1930-09-10
Abstract: 362,974. Yarn and like winding machines. UNIVERSAL WINDING CO., 95, South Street, Boston, U.S.A.-(Assignees of Swanson, E. R. ; 62, Waldron Avenue, Eden Park, Rhode Island, U.S.A.) Sept. 10, 1930, No. 27088. Convention date, April 26. [Class 120 (ii).] In a winding-machine the delivery point of the yarn, which point may be the source of supply or a point between the latter and the package-support, is located remote from the package-support during winding but adjacent to it when winding is arrested owing to breakage of the yarn or completion of a package. Yarn y from a bobbin B mounted on a radial spindle 115 on a rotatable member 114 passes through guides 134, 133, a slub-catcher 132, and a tension device 120, under a pin 140 and across the bar 45 of a thread-bail 40 to a spool C supported by a pivoted arm 11 and driven by a roller 7 acting as a traversing-device as in Specification 339,679, [Class 120 (ii), Spinning, twisting &c.]. Breakage or running out of the yarn releases the thread-bail 40 and allows a lever 48 to swing to the right, Fig. 2, under the action of a spring 55 so that a dog 33 pivoted on a lever 27 drops into the vertical position where it is engaged by a bunter cam 35 rotating continuously on the shaft 36, and is forced upwards, Fig. 4, tilting the lever 27 about an axis 30. A pawl 26 carried by the lever 27 draws a rack-bar 20 forwards and thus through a lever 18 lifts the package C away from the roller 7. The movement of the lever 27 causes the lever 48 to ride down an incline 57, thereby stretching the spring 55 so as to return the dog 33 to its original position when released from the cam 35. Before the release of the dog, a starting lever 70, riding on the edge 69 of a plate 38, drops and engages the plate with a detent shoulder 71 to prevent return movement of the lever 27. A clutch lever 172 carried by the lever 27 shifts a winding drum 155, Fig. 6, into engagement with a toothed clutch 159 driven through a friction clutch 166 from the shaft 36. This drum winds a cord 150 and thereby draws a slide 141 carrying the pin 140 into a position above the tension device 120 to facilitate piecing or the attachment of yarn to a new package. When the slide is arrested at its highest point, the clutch 166 slips. In a modification, the slide 141 carries a tension device. As the package increases in size the rack-bar 20 slides forward until a ledge 94 on an arm 95 attached to the bar releases a detent 92 which allows a weight 82 pivoted on an axis 32 to swing down so that a pin 83 swings the dog 33 into contact with the bunter-cam 35 and thus effects the stoppage as described. To re-start the machine, the lever 70 is lifted to rock the bell crank 75 whereby a lug 80 on the arm 79 raises the weight 82 so as to re-engage the detent 92 with the ledge 94. The upward movement of the shoulder 71 allows the plate 38 and lever 27 to return to their working positions under the action of a leaf-spring 60. The clutch lever 172 is withdrawn and allows the winding drum 155 to 'be released by a spring 170 from engagement with the clutch 159 ; the slide 141 falls by gravity and unwinds the cord 150.